Self-measuring oil-pump.



G. F. WELGH.

SELF MEASURING OIL PUMP.

APPLICATION FILED APR. 27,1808.

Patented Dec. 8, 1908.

2 SHEETS-SHEET 1.

WITNESSES G. P. WELCH.

SELF MEASURING OIL PUMP.

APPLICATION FILED A PR.27,1908.

906,478. Patented Dec. 8, 1908.

2 SHEETSSHEET 2.

WITNESSETQ: 7W INVENTOR. I I Byg fiwwwwy a )4TT0RNEY$.

1 UNITED STATES PATENT ()FFICE.

GEORGE F. WELCH, OF FORT WAYNE, INDIANA, ASSIGNOR OF ONE-HALF TO FRANKD. WALTER, OF FORT WAYNE, INDIANA.

SELF-MEASURING OIL-PUMP.

Specification of Letters Patent.

Patented Dec. 8, 1908.

Application filed April 27, 1908. Serial No. 429,295.

To all whom it may concern:

Be it known that I, GEORGE F. WELOH, a citizen of the United States,residing at Fort Wayne, in the county of Allen, in the State of Indiana,have invented certain new and useful Improvements in Self-Measurin Oil-Pumps; and I do hereby declare that t e following is a full, clear, andexact description of the invention, which will enable others skilled inthe art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, which form part of this specification.

My invention relates to improvements in self-measuring oil-pumps,designed for use in connection with retailers oil tanks.

The object of my present invention is to provide a cheap, efi'icient,convenient and reliable self-measuring pump specially designed andadapted for the retalling of illuminating oils, and so constructed as toautomatically deliver to the purchaser any desired quantity of theliquid, to be measured either in gallons or fractions thereof, or by thestandard of a monetary value, and to indicate to both retailer andpurchaser at each 0 era tion of the pump, the exact amount of Oildelivered, by means of a novel form of selfmeasuring and indicatingmechanism.

- My invention consists of an upright supporting-standard carrying thevarious operating mechanisms; a vertically reciprocating rack-barslidable in a suitable guide in the standard, and connected ,at itslower end to the pump-rod; an actuating ear for 0 crating the rack-bar;means for imiting t 1e movement of the rack-bar to secure anypredetermined quantity of oil means for indicating the amount of oildelivered at each oper ation of the rack-bar; means for indicating thelimit of movement of the rack-bar to dis char e a redetermined monetaryvalue of oil w ien dhsired; a discharge pipe arranged in the supportinstandard in parallel relation with the rec -bar; and means forautoinaticall y preventing the drip from the nozzle of thedischarge-pipe.

The principal novel features of my invention reside in the pump-rodactuating means; the self-measuring mechanism; the indicatingmechanisms; and the discharge means in which drip is avoided.

11 adapted to form when united a two Similar reference numerals indicatecorre sponding parts throughout the several views of the drawings inwhich Figure 1 is a front elevation of my invention showing the form ofthe supporting standard and the inclosing casing, partly broken away toshow the incloscd actuating gears, and also showing the relativearrangement of the self measuring regulating means. Fi 2 is a detailside elevation of the gallon indicating mechanism in its cooperativerelation with the means for actuating the same, partly broken away,one-half of the two-part casing for the gallon indicating mechanismbeing removed. Fig. 3 is a cross-section of the pump taken on the linear-w of Fig. 1, to show the relative arrangement of the variousoperative mechanisms within and without the casing. Fig. 4 is a sideelevation of the pump looking from the right in Fig. 1, showing thearrangement of the monetary dial, and showing the discharge nozzle invertical central section to show the drip preventing means. Fig. 5 is anenlarged detail of the monetary dial with its supporting shaft partlybroken away. Fig. 6 is an enlarged detail front view of one-part of theself-measuring regulatin means, andFig. 7 is a detail front view of t ieother cooperating part of the said means.

The supporting standard 1 on which the pump mechanism is mounted has asemicircular base 2 adapted to rest upon the to 3 of any proper oil tanknot shown, but 0 well understood construction, and a air of laterallyapertured opposite lateral ugs 4 and 5 and is provided at its upper endwith a lateral extension 6 comprising one section of the two-part sheathor casing which incloscs the gallon indicating dial consisting of a disk7 having a series of measured peripheral teeth 8, at the base of whichthe numerals from O to 9 are arranged, as shown in Fig. 2. The sheath orcasing for the actuating gear is also in two parts 9 and 10 of similarconstruction, and each has an integral pendent extension art supportingstandard having a circular ass 12. The casing section 9 has a lateralextension 13 preferably integral and the counterpart of the extension 6and for identically the same function, and is provided with the (illlaterally apertured ears 14, i5 and 16 adapted to be rigidly secured tothe corresponding apertured ear 4 of the standard 1 and to the ears 17and 18 respectively of the casing section by means of'proper screws 19,20 and 21. ihe parts 6 and 13 of the dial casing are further rigidlysecured together by means of the screw 22, the opening in part 6 beingshown at 23 in Fig. 2, and by means of the screw 24 in the lugs 5 and25, the latter being on the casing section 10, Fig. 3. A proper pump-rod26 passes through aproper stufiing- OX 27 fixed in a suitable opening inthe top 3 of the tank, Fig. 1, and to its upper end is detachablyconnected a rack-bar 28, whose upper end is slidably mounted in asuitable guiding opening in the gear sheath, as shown in Fig. 3.

in a transverse opening having suitable bearings as shown in Fig. 3, isrotatively mounted an arbor 29 on which is fixed the gear-wheel 30adapted for a meshing engagement with the pinion 3i fixed on the shaft32 on one extended ,end of which is fixed the operating crank-handle Fthe side of the gear casing near top thereof. The other extended end ofthe arbor 29 is preferably an ular, as seen in Fig. l, and has a disk 371 'ed thereon. This disk is preferably of somewhat irregular contour,and is provided at or near its perimeter with a plurality, preferablythree, radially ar ranged and shghtly extended adjustable fingers 38, 39and 40 respectively, Figs. 1, and 6. This disk has a central angularopening 41,

3 and one corner of the free end of these fingers is beveled, as shown,to enable them to more surely pass the regulating stop, about to bedescribed on the return movement of the disk in use. In the adjacentface of the easing section 9 in coeperative relation with the finger 38is a fixed pin 42, Fig. 1, adapted to limit the forward movement of thedisk 37 and the arbor 29 by the engagement of the finger 38 therewith,in the manner hereafter described. (in the sameside of the casingsection 9 in coiiperative relation with the disk 37 is detachablymounted a small casing 43 having a gradual scale 44 thereon indicatin apint, a quart, a one-half gallon, and one ga lon, and provided with alongitudinal notch 45. In this casing 43 is slidably mounted ahorizontal bar 46 in which is fixed a pin 47 slidable in the slot 45,and having an index finger 48 in cooperative relation with scams thescale 44 in the manner and for the purpose about to be described.

The toothed disk 7 is fixed upon the short shaft 49 Fig. 3, whose endsare loosely mounted in suitable lateral openings in the casing sections6 and 13 respectively. One end of this shaft 49 has a screw 50 fixedtherein provided with a milled head 51 to enable the operator to returnthe disk to normal position when desired.

On the upper end of the vertical rack-bar is pivotally mounted,approximately midway of its ends, a short arm 52, adapted for anactuating engagement with the upper free end of the pin 53 which isloosely mounted in a suitable vertical opening in the top of the dialcasing, and in coeperative relation with the adjacent end of the arm 52,Fig. 2. This pin 53 has upon its upper end a coil spring 54 one end ofwhich bears against the head of the pin and the other end against theadjacent dial casing.

On a transverse pin 55 fixed in the sides of the'dial casing ispivotally fulcrumed a lever 56 having its ends bifurcated and pivotallyconnected at one end to the lower end of the pin 53, and having itsother end provided with a pivoted pawl 57 adapted for an actuatingengagement with the teeth 8 of the dial 7. in a slot 58 in the upperedge of the dial casing is mounted a pivoted gravity pawl 59 adapted toengage the teeth 8 to prevent any retrograde movement thereof. 5 Thevertical discharge-pipe 60 leading from the oil tank is firmly securedin position by passing through a central opening in the two-part base 12of the standard extensions 11, and through the gear casing, Figs. 1 and3. T he upper end of the discharge pipe has a forward extension 61connected thereto by an elbow 62 or other proper manner. This extension61 has a fixed or integral globular extension 62 having a screw-threadedlid 63, a hook 64 from which to suspend an oil can, and a pendentdischarge tube or spout 65. The function of the receptacle 62 isto-avoid the usual drip from the discharge spout. This is accomplishedby hin ing on the pivot 67 a valve 66 adapted y gravity to close theopening from the extension 61, and having a valve 68, adapted to closethe o ening to the discharge-pipe 65, and connecte to the valve 66 bymeans of the curved plates 69, whereby both valves will automaticallyresume their res ective seatsby gravity.

he operation and manner of employing my invention thus described isobvious and briefly stated is as follows: When it is desired to draw anddeliver to a customer a gallon of oil from the tank, the operatorsuspends the customers oil can from the hook 64 with the spout inposition to discharge into the same. He then adjusts the index finger 48to the right until it indicates the gallon mark, Fig. 7, therebywithdrawing the inner extended end of the stop bar 46 within the casing43. He now gives the operating crank-handle 33 a full rotation to theright in Fig. 1, until it is stopped by the contact of the finger 38with the other side of the pin 42. This operation delivers a fullgallon, it being, of course assumed that all'parts of the pump arepreviously properly adjusted.

When the discharging liquid is forced through the tubular extension 61it will force open the hinged valves 66 and 68, and hold them open untilthe flow through the same a one-half turn.

ceases, after which both of said valves will assume their seats bygravity and prevent any drip through the discharge spout 65. Should aone-half gallon of oil be desired the operator sets the finger 48 at theone-half gallon mark on the casing 43 which will set the stop-bar 46 ata sufficient projection to permit the fingers 39 and 40 to pass, but toproject into the path and holdingly engage the "linger 38 upon theforward rotation of the crank-arm thereby limiting the crank-arm to Todeliver one quart of oil the operator sets the finger 48 at the quartmark on the scale 44, which thereby extends the stop 46 into the path ofthe finger 39, and then operates the crank handle as before, which willthen be given but a one-fourth turn and thus deliver one fourth ofagallon. In like manner to deliver a pint of oil the finger 48 is set atthe line of the pint markwhich will project the inner end of the stop 46into the icircular path of the finer 4t), and thereby permit theoperation of the crank handle only to a one eighth of a rotation thereofand will thus deliver only a one eighth of a gallon.

When the operator desires to deliver to ne receptacle several gallons hecan have the pump keep a register of such number to avoid any oversightor miscount on his part, as follows: He adjusts the pivoted arm 52 invertical alinement with the pin 53, Fig. 2, whereby at each fdown strokeof the rack-bar 28 the pawl 57 will rotate the dial plate 7 the distancebetween the teeth thereof, whereby starting at O on the dial thedelivery of five gallons; for example, would require five down strokesof the rack bar 28, and consequently five movements of the disk 7 by thepawl 57, which would bring the numeral 5 on the disk directly oppositethe lateral opening 70 in the casing section 13, Fig. 4, in full view ofboth the operator and the customer. He then returns the dial disk 7 toits normal position with opposite the opening 70, by seizing the nut tand rotating the disk to the left in Fig. 2, \\'ill('ll can readily bedone since the pawl 57 is piVotall) mounted in the lever 56 and yieldsfreely against the contact of the teeth 8 with its lower face.

Obviously at each 0 eration of, the dial disk the gravity paw 59prevents any retrograde movement thereof, and that the number of gallonsthus discharged to any single customer will be accurately registered andexposed to view at the opening'70. When a customer desires to purchase acertain number of cents worth of oil it is measured to him as follows:The disk 34 is so arranged on the arbor 29 that the line 71, Fig. 5,will be in exact horizontal alinement with the adjacent 11 per face ofthe finger 72, Figs. 3 and 4, w ien the rack bar is at the lowest limitof its movement, and the pump mechanism is in the position shown inFig. 1. This disk has its perimeter divided laterally into a pluralityof spaces, for example four. spaces arranged in alinement with the samenumber of corresponding spaces on the fixed plate which spaces containeach a different price of oil, as shown in Fig. 5. The peripheral diskspaces are divided cireuml'erentially into spaces indicating cents u tothe price of a gallon. Assuming, for ilustration that a customer callsfor ten cents worth of oil when oil is worth twelve cents a gallon, theretailer measures that amount of oil to him by rotating the handle 33 inthe usual manner until the line 73, Fig. 5, is brought around tohorizontal alinement with the finger 72, Fig. 4. In like manner anynumber of cents worth ofoil can be thus accurately measured anddelivered at pleasure. When oil is thus measured the stepbar 46 is, ofcourse, withdrawn within the casing 43 and out of the path of thefingers 38, 39 and 40. These last mentioned fingers can readily beadjusted on. their supporting screws 74 to secure absolute accuracy ofmeasurement.

Having thus described my invention and the manner of employing the same,what I desire to secure by Letters Patent is:

1'. A self-measuring oil pump consisting of an upright supportingstandard; a rackbar slidably mounted in the standard and connected atits lower end to the pump-rod; a twoart sheath mounted on the standard;a revo uble arbor transversely mounted in the sheath; a gearwheelmounted in the sheath in mesh with the upper end of the rack-bar, andfixed upon a rotatable arbor; a plate fixed on one extended end of thearbor, and provided with spaced peripheral adjustable fingers; anadjustable bar mounted on the outer face of the sheath adapted to beprojected into the path of the said fingers, one at a time, to limit therotation of the arbor; a pinion rotatively mounted in the casing in meshwith the said gearwheel;

and means for actuating the said pinion.

' 2. I n a self measuring oil pump an upright standard; a verticallyreciprocating rack slidable in the up er end of the standard; adetachable sheat mounted on the standard; means for actuating the rackarranged Within the sheath, consisting of a revoluble arbor, a gearfixed on the arbor in mesh with the rack, and a pinion having anoperating crank handle and in mesh with the gear; a disk fixed upon oneextended end of the arbor and provided upon its periphery with a dialface indicating the monetary value of any quantity of liquid delivered;means for limiting the rotary movement of the gear consisting of a diskfixed u on the other extended end of the arbor, a p urality of fingersarranged at and projecting from the perimeter of the disk, andadjustable means for enga ing said fingers as described.

3. n a liquid pump self-measuring and indicating means comprising asectional sheath vertically supported; a vertically movable rack passingt rough the sheath; a serrated disk revolubly mounted in the casing andhaving gallon marks upon one side thereof; means for actuating the diskat each full down stroke of the rack consisting of a lever-arm pivotallyfulcrumed midway of its ends, and carryin upon one end a pivoted pawladapte to engage the serrations of the disk one at a time, an u rightspring-pressed pin pivotally connecte at its lower end to the other endof the lever-arm, and an arm pivotally mounted on the upper end of therack-bar, and adapted for an actuating engagement with t e said pin;means for actuating the rack; means for measuring the discharge at eachoperation b limiting the vertical movement of the rack andmeans forautomatically measuring the monetary seams arbor in 006 erative relationwith the said' bar; and a p urality of stop-fingers arranged upon thedisk at different distances from the axis of the arbor, and adapted toengage the bar one at a time, at different adjustments of such bar.

5. In an oil pump means for measuring and delivering oil upon a monetarystandard consisting of a vertically movable rack; a

sectional casing inclosing the up er portion of the rack and providedwith opposite lateral 0 enings; an arbor revolubly mounted in t e saidlateral openings; a gearwheel fixed on the arbor in mesh With the rack;means foractuating the gear; a disk fixed on one extended end of thearbor, and provided upon its erimeter with a graduated scale; and a 1 edfinger in cooperative relation with the said scale, all substantially asdescribed.

Signed by me at Fort Wayne, Allen county, State of Indiana, this 25thday of April, A. D. 1908 GEORGE F.- WELCH.

. Witnesses:

AUGUSTA VIBERG, WATTS P. DENNY.

